The HT86R384 has three 16-bit programmable timer/event counters, what are their differences?
Answer Timer/Event Counter 0 and Timer/Event Counter 1, have three operating modes: event counter mode (uses external clock), timer mode (uses internal clock) and pulse width measurement mode. Their overflow interrupt service vector is located at 0008H and 000CH respectively. As the Timer/Event Counter 2 clock source can only come from the internal signal T1, therefore it only has one operating mode, which is the timer mode, with an overflow interrupt vector at 0010H.